Determination of 16 Selected Trace Elements in Children Plasma from China Economical Developed Rural Areas Using High Resolution Magnetic Sector Inductively Coupled Mass Spectrometry

Table 5

Concentrations (μg/L) of 16 selected plasma trace elements in girls (𝑁=208) by age groups.

Element	GM	95% CI GM	3–6 years (𝑛=71)		7–12　years (𝑛=137)
			GM	95% CI GM	GM	95% CI GM
B	40.17	36.81–43.96	42.52	36.98–48.67	39.0	35.29–43.66
Rb	417.16	383.77–453.30	390.64	333.78–459.67	431.6	390.49–481.66
Sr	59.15	56.10–62.61	58.4	53.31–64.03	59.53	55.65–63.55
Mo	2.30	2.20–2.40	2.41	2.22–2.61	2.25	2.15–2.36
Cd^ab	64.21	57.25–70.45	65.51	59.05–77.20	61.06	54.40–67.51
Pb^a	603.01	548.67–665.21	666.89	562.87–795.59	572.36	514.27–641.99
Al^b	1.46	1.01–2.01	1.53	1.17–2.16	1.36	0.85–2.12
V^a	116.37	107.83–125.76	128.86	115.05–143.77	110.38	99.51–122.55
Cr^a	499.04	436.04–577.73	589.53	462.01–762.18	457.76	392.96–543.89
Mn	1.83	1.67–2.02	2.00	1.68–2.40	1.75	1.56–1.97
Fe	1497.88	1402.61–1611.11	1582.55	1399.60–1815.70	1455.8	1339.46–1585.82
Co^a	183.31	170.64–196.81	193.74	171.97–220.78	178.13	161.80–195.06
Cu	955.54	926.00–985.77	1047.22	979.18–1112.75	911.23	883.09–939.70
Zn	748.36	728.40–769.65	773.29	739.76–813.93	735.75	713.39–759.50
As	1.47	1.28–1.70	1.51	1.16–1.97	1.45	1.24–1.69
Se	114.47	110.23–118.89	116.14	108.86–123.86	113.62	107.82–119.16

ang/L, bmedian and CI median.